Home / 813,891.50-1,123,170.27-456,195.50

Finding the Fourth Proportional to 813,891.50, 1,123,170.27 and 456,195.50

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Solution

The fourth proportional to 813,891.50, 1,123,170.27 and 456,195.50 is: 629,549.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,891.50 : 1,123,170.27 = 456,195.50 : x
  2. Step 2: Convert to fraction form
    813,891.50/1,123,170.27 = 456,195.50/x
  3. Step 3: Cross multiply
    813,891.50x = 1,123,170.27 × 456,195.50
  4. Step 4: Simplify right side
    813,891.50x = 512,385,222,907.79
  5. Step 5: Solve for x
    x = 512,385,222,907.79/813,891.50
  6. Step 6: Final answer
    x = 629,549.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.